Export Survey123 Feature Class to FGDB Fails

Has anyone else experienced this issue on Portal For ArcGIS with Survey123 Feature Classes?

I had this error once before but I tried it again the following day and it just worked, that solution didn't work this time.

I go to the feature class Export Data>To FGDB

Enter tags, summary, and set the output location

The Export button goes gray and says "Exporting..."

Then one of two things happens:

1. I get "Error: Failed" (see attached pic)

2. The "Export" button goes back to blue, it still says exporting, and the cursor spins forever.

This particular survey was created by a user then ownership was transferred to the headless admin. I have tried exporting as both another admin user and as the headless admin user with exactly the same results.

This survey has a related table and picture attachments so an alternative format export (like csv) isn't an option.

Unfortunately, the error you received is fairly generic. Could you open a developer window with your browser and attempt export again? You will series of requests going to a 'status' endpoint. After the failure, the last of these will be the one that reported the error- it might have a more detailed message to describe the issue.

If you're not familiar with doing the above diagnostic, please open an issue with Esri Technical Support and provide them this message as a procedure to check along with describing your problem.